Patents by Inventor Kosuke Ogawa

Kosuke Ogawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10862363
    Abstract: In a motor, a wire support member includes a wire holding portion that holds one portion of coil lead wires among the coil lead wires extending upward from a coil, a first conducting member that electrically connects the other portion of the coil lead wires to each other, and a main body portion that supports the wire holding portion and a first conducting member, a bus bar unit includes a second conducting member connected to the coil lead wire held by the wire holding portion, and a bus bar holder that holds the second conducting member. A bearing holder includes a through-hole which penetrates the bearing holder in an axial direction and through which a coil end of the coil lead wire or the second conducting member passes.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: December 8, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Kosuke Ogawa, Takashi Hattori, Shunsuke Murakami, Takao Atarashi, Hidehiro Haga
  • Publication number: 20200251954
    Abstract: In a motor, busbars each includes a grasping portion to grasp a conducting wire extending from a coil. A pair of arm portions in each of the grasping portions extend from a base portion to a same side in a circumferential direction. A busbar holder includes a busbar holder body, and a cylindrical first central tubular portion centered on a central axis, projecting to a second axial side from the busbar holder body. A bearing holder includes a first central hole portion centered on the central axis, and extending through the bearing holder in an axial direction. The first central tubular portion is fitted in the first central hole portion. One of the bearing holder and the busbar holder includes a hole portion recessed in the axial direction. Another one of the bearing holder and the busbar holder includes a fitting projection portion projecting in the axial direction. The fitting projection portion is fitted in the hole portion.
    Type: Application
    Filed: September 20, 2018
    Publication date: August 6, 2020
    Inventors: Kosuke OGAWA, Tatsuya ONISHI, Takashi SEGUCHI
  • Publication number: 20200251949
    Abstract: A motor includes a rotor including a shaft extending along a central axis, a stator including a coil and opposing the rotor in a radial direction with a gap, and a busbar positioned at one axial-directional side of the stator. The busbar includes a conducting wire-connecting portion connected to a conducting wire extending from the coil. A notch into which the conducting wire is inserted is provided in the conducting wire connecting portion. An inner circumferential surface of the notch includes a bottom surface opposing an opening side of the notch, a first opposed surface extending from the bottom surface towards the opening, and a second opposed surface extending from the bottom surface towards the opening and opposing the first opposed surface.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 6, 2020
    Inventors: Tatsuya ONISHI, Kosuke OGAWA, Takashi SEGUCHI, Shunsuke MURAKAMI
  • Publication number: 20200220412
    Abstract: A motor includes a rotor with a shaft disposed along a central axis, a stator including coils and facing the rotor via a gap in a radial direction, bus-bars electrically connected to the stator, and bus-bar holders on one side in the axial direction of the stator that are distinct members separated from each other. The coils define coil groups having power systems different from each other. Each of the bus-bar holders holds at least one of the bus-bars different from each other. In each of the bus-bar holders, at least one of the bus-bars held on the bus-bar holder includes a connection terminal part electrically connected to an electrical component.
    Type: Application
    Filed: September 25, 2018
    Publication date: July 9, 2020
    Inventors: Yasuhiko IWANO, Tatsuya ONISHI, Kosuke OGAWA, Takashi SEGUCHI
  • Publication number: 20200059129
    Abstract: A motor includes a rotor, a stator, and first bus bars electrically connected to the stator on one axial direction side of the stator. The stator includes a stator core including a core back extending in a circumferential direction, teeth extending radially from the core back, and coils defined by winding a conducting wire, each of which is mounted on the teeth. A first conducting wire and a second conducting wire which are two respective ends of the conducting wire extend to one axial direction side from each of the coils. The first bus bars are neutral point bus bars connecting two or more first conducting wires as neutral points. The second conducting wire is connected to a power supply that supplies power to the stator.
    Type: Application
    Filed: March 30, 2018
    Publication date: February 20, 2020
    Inventors: Yoshiaki YAMASHITA, Shunsuke MURAKAMI, Kosuke OGAWA
  • Patent number: 10566871
    Abstract: A motor, may include a rotor having a shaft which has its center on a center axis extending in one direction; a stator which surrounds the rotor in the axial circumference, and includes a plurality of coils; and bus bars connecting coil ends extending from the coils. The bus bars may include a plate shape member bent in a thickness direction, a width direction of the bus bars being identical to an axial direction of the motor. Each of the bus bars may include a main body portion, and a coil end connection portion which extends from the main body portion and grips one of the coil ends at an opening that is open toward one direction within a plane perpendicular to the axial direction.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: February 18, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Hiroshi Sambuichi, Kosuke Ogawa, Takashi Hattori
  • Patent number: 10566870
    Abstract: A motor, may include a rotor having a shaft which has its center on a center axis extending in one direction; a stator which surrounds the rotor in the axial circumference, and includes a plurality of coils; and bus bars connecting coil ends extending from the coils. The bus bars may include a plate shape member bent in a thickness direction, a width direction of the bus bars being identical to an axial direction of the motor. Each of the bus bars may include a main body portion, and a coil end connection portion which extends from the main body portion and grips one of the coil ends at an opening that is open toward one direction within a plane perpendicular to the axial direction.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: February 18, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Hiroshi Sambuichi, Kosuke Ogawa, Takashi Hattori
  • Publication number: 20200014271
    Abstract: A motor includes a first bus bar including a first extension extending in a first direction perpendicular to the axial direction, a second extension extending from an end of the first extension in a second direction perpendicular to the axial direction and intersecting the first direction, and a first bus bar body including a first corner to which the first extension and the second extension are connected. A holder includes a support to support the first bus bar body from another side in the axial direction, a pair of first walls parallel or substantially parallel in a first perpendicular direction and to which the first extension is fitted in the first perpendicular direction, and a pair of second walls parallel in a second perpendicular direction and to which the second extension is fitted in the second perpendicular direction. The pair of first walls include wall surfaces that face each other in the first perpendicular direction and are spaced by a gap from each other, and extend in the first direction.
    Type: Application
    Filed: March 16, 2018
    Publication date: January 9, 2020
    Inventors: Kosuke OGAWA, Tatsuya ONISHI, Takashi SEGUCHI, Yasuhiko IWANO
  • Publication number: 20190379195
    Abstract: A bus bar unit includes a bus bar holder and bus bars. The bus bar holder is provided on an upper side of a stator disposed in a ring around a central axis extending in a vertical direction. The bus bars are supported by the bus bar holder and connected to coil wires extending from the stator. The bus bars are plate-shaped conductors and are supported by the bus bar holder with a plate surface facing in the vertical direction. The bus bars include coil connecting portions connected to the coil wires, and a bus bar body portion connecting the coil connecting portions through a radially inner side of the plurality of the coil connecting portions, respectively, and at least one bus bar crosses over an upper side or a lower side of at least one of the other bus bars.
    Type: Application
    Filed: January 30, 2018
    Publication date: December 12, 2019
    Inventors: Kosuke OGAWA, Takashi SEGUCHI, Shunsuke MURAKAMI, Takao ATARASHI
  • Publication number: 20190341749
    Abstract: A motor includes a stator including, a rotor to rotate about a central axis extending in a vertical direction, and a first bus bar, a second bus bar, and a third bus bar to which lead wires of the coils are respectively connected. The first bus bar includes a first connecting portion to which two lead wires are connected, the second bus bar includes a second connecting portion to which two lead wires are connected, the third bus bar includes a third connecting portion to which one lead wire is connected and a fourth connecting portion to which one lead wire is connected. The first and second connecting portions are arranged side by side in a circumferential direction, and the third and fourth connecting portions are arranged in the circumferential direction with the first and second connecting portions interposed therebetween.
    Type: Application
    Filed: January 16, 2018
    Publication date: November 7, 2019
    Inventors: Kosuke OGAWA, Takashi SEGUCHI, Shunsuke MURAKAMI, Takao ATARASHI
  • Publication number: 20180323669
    Abstract: A motor, may include a rotor having a shaft which has its center on a center axis extending in one direction; a stator which surrounds the rotor in the axial circumference, and includes a plurality of coils; and bus bars connecting coil ends extending from the coils. The bus bars may include a plate shape member bent in a thickness direction, a width direction of the bus bars being identical to an axial direction of the motor. Each of the bus bars may include a main body portion, and a coil end connection portion which extends from the main body portion and grips one of the coil ends at an opening that is open toward one direction within a plane perpendicular to the axial direction.
    Type: Application
    Filed: July 10, 2018
    Publication date: November 8, 2018
    Inventors: Hiroshi SAMBUICHI, Kosuke OGAWA, Takashi HATTORI
  • Publication number: 20180323670
    Abstract: A motor, may include a rotor having a shaft which has its center on a center axis extending in one direction; a stator which surrounds the rotor in the axial circumference, and includes a plurality of coils; and bus bars connecting coil ends extending from the coils. The bus bars may include a plate shape member bent in a thickness direction, a width direction of the bus bars being identical to an axial direction of the motor. Each of the bus bars may include a main body portion, and a coil end connection portion which extends from the main body portion and grips one of the coil ends at an opening that is open toward one direction within a plane perpendicular to the axial direction.
    Type: Application
    Filed: July 10, 2018
    Publication date: November 8, 2018
    Inventors: Hiroshi SAMBUICHI, Kosuke OGAWA, Takashi HATTORI
  • Publication number: 20180316239
    Abstract: A motor includes a rotor that includes a shaft centered on a central axis extending in an upward and downward direction; a stator that is disposed to face the rotor in a radial direction; a bearing that supports the shaft; a bearing holder that holds the bearing; and a housing that accommodates the rotor, the stator, and the bearing holder, and opens to an upper side. The housing includes a controller accommodating region that accommodates at least a portion of a controller electrically connected to the stator on an upper side from the bearing holder. An inner diameter of the housing in the controller accommodating region is larger than an inner diameter of the housing at a position to which the bearing holder is attached. The bearing holder is held on an inner peripheral surface of the housing by interference fitting.
    Type: Application
    Filed: October 6, 2016
    Publication date: November 1, 2018
    Inventors: Kosuke OGAWA, Takashi HATTORI, Takashi SEGUCHI, Shunsuke MURAKAMI, Takao ATARASHI, Yoshiaki YAMASHITA
  • Publication number: 20180309340
    Abstract: A motor includes a rotor that includes a shaft centered on a central axis extending in an upward and downward direction; a stator that is positioned to face the rotor; and a bus bar unit that is positioned on an upper side of the stator and connects the stator to a control device. The bus bar unit includes a bus bar and a bus bar holder supporting the bus bar. The bus bar includes a coil connecting portion that is connected to a coil end extending from the stator, a connecting terminal portion that extends upward and is connected to the control device, a support portion that is supported by the bus bar holder, and an arm portion that is positioned between the support portion and the connecting terminal portion. The arm portion extends in a direction intersecting a radial direction in plan view.
    Type: Application
    Filed: October 12, 2016
    Publication date: October 25, 2018
    Inventors: Kosuke OGAWA, Takashi HATTORI
  • Publication number: 20180248438
    Abstract: In a motor, a wire support member includes a wire holding portion that holds one portion of coil lead wires among the coil lead wires extending upward from a coil, a first conducting member that electrically connects the other portion of the coil lead wires to each other, and a main body portion that supports the wire holding portion and a first conducting member, a bus bar unit includes a second conducting member connected to the coil lead wire held by the wire holding portion, and a bus bar holder that holds the second conducting member. A bearing holder includes a through-hole which penetrates the bearing holder in an axial direction and through which a coil end of the coil lead wire or the second conducting member passes.
    Type: Application
    Filed: August 9, 2016
    Publication date: August 30, 2018
    Inventors: Kosuke OGAWA, Takashi HATTORI, Shunsuke MURAKAMI, Takao ATARASHI, Hidehiro HAGA
  • Publication number: 20180233984
    Abstract: A motor includes a rotor that has a shaft with a central axis extending in a vertical direction as a center, a stator disposed so as to face the rotor in a radial direction, a bearing that supports the shaft, a wire support member disposed above the stator, and a bearing holder disposed above the wire support member to hold the bearing. The stator includes a plurality of teeth, and a plurality of coils provided on the plurality of teeth. The wire support member includes a wire holding portion that holds one portion of coil lead wires among the coil lead wires drawn out from the coil, a conducting member that electrically connects the other portion of the coil lead wires to each other, and a main body portion that supports the wire holding portion and the conducting member.
    Type: Application
    Filed: August 9, 2016
    Publication date: August 16, 2018
    Applicant: Nidec Corporation
    Inventors: Kosuke OGAWA, Takashi HATTORI, Shunsuke MURAKAMI, Takao ATARASHI, Hidehiro HAGA, Yoshiaki YAMASHITA, Takahiro KIZU, Toshiya OKAMOTO
  • Patent number: 10050483
    Abstract: A motor, may include a rotor having a shaft which has its center on a center axis extending in one direction; a stator which surrounds the rotor in the axial circumference, and includes a plurality of coils; and bus bars connecting coil ends extending from the coils. The bus bars may include a plate shape member bent in a thickness direction, a width direction of the bus bars being identical to an axial direction of the motor. Each of the bus bars may include a main body portion, and a coil end connection portion which extends from the main body portion and grips one of the coil ends at an opening that is open toward one direction within a plane perpendicular to the axial direction.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: August 14, 2018
    Assignee: NIDEC CORPORATION
    Inventors: Hiroshi Sambuichi, Kosuke Ogawa, Takashi Hattori
  • Publication number: 20160190887
    Abstract: A motor, may include a rotor having a shaft which has its center on a center axis extending in one direction; a stator which surrounds the rotor in the axial circumference, and includes a plurality of coils; and bus bars connecting coil ends extending from the coils. The bus bars may include a plate shape member bent in a thickness direction, a width direction of the bus bars being identical to an axial direction of the motor. Each of the bus bars may include a main body portion, and a coil end connection portion which extends from the main body portion and grips one of the coil ends at an opening that is open toward one direction within a plane perpendicular to the axial direction.
    Type: Application
    Filed: December 28, 2015
    Publication date: June 30, 2016
    Inventors: Hiroshi Sambuichi, Kosuke Ogawa, Takashi Hattori